Presented are two blocks of allometry data from my orchard scaling project (2012-2013) conducted at Kaysville Research Farm, USU. I sampled five 24 year old tart cherry (Prunus cerasus Montmorency, P. mahaleb) from one block and 19 8 year-old apples (Malus domestica “Golden Delicious”) from one block with various rootstocks. BranchSegments.csv (branch_size) contains the size and orientation data for all trees sampled at a branch-level. TreeSummary.csv (tree_sum) contains the size and orientation data for all trees sampled at a tree-level. Listing of fields represented in the data are located at the end of this dococument for both data files. Data is analysed using Standardized Major Axis (SMA; aka reduced major axis) with R-package ‘smatr’.
Histograms for segment length [cm], path length, and subtree length levels. Sample size is listed next to title. There are 5 cherry and 19 apple individuals represented. The Biggest Apple is the largest rootstock (‘PiAu’) with 3 individuals represented. The Smallest Apple is the smallest rootstock (‘B9’) with 4 individuals represented.
Segment length is the distance of a branch unit bounded by two major branching events.
Path length is the total length of a target branch and the longest continuous length of succeding branches. The calculation includes terminal twigs when the data is available.
Subtree is the diameter of a given branch segment, and the total length, total surface area, and total volume of all branch segments distal to that branch segment.
Histograms for diameter [mm] at an individual level. Sample size is listed next to title. There are 5 cherry and 19 apple individuals represented. The Biggest Apple is the largest rootstock (‘PiAu’) with 3 individuals represented. The Smallest Apple is the smallest rootstock (‘B9’) with 4 individuals represented.
Histograms for segment mass, total segment mass, and total subtree mass. Sample size is listed next to title. There are 5 cherry and 19 apple individuals represented. The Biggest Apple is the largest rootstock (‘PiAu’) with 3 individuals represented. The Smallest Apple is the smallest rootstock (‘B9’) with 4 individuals represented.
Total Segment Mass is the the sum of all major branch segments. Terminal twigs are not included.
Subtree mass is the total sum of all major branch and twig segments. Twig mass is added to Total Segment Mass.
The Branch Area Ratio is sum of daughter branch surface areas divided by the surface area of their parent branch.
Expected Exponent: Flow Similarity = 2 (peripheral / fruiting branches); Biomechanical = 2/3 (basal / scaffold branches)
Expected Exponent: Flow Similarity = 3/4 ; Biomechanical = 5/8
Expected Exponent: Flow Similarity = 1/4 ; Biomechanical = 3/8
Expected Exponent: Flow Similarity = 1/2 ; Biomechanical = 1/4
Expected Exponent: Flow Similarity = 1/3 ; Biomechanical = 3/5
Expected Exponent: Flow Similarity = 2/3 ; Biomechanical = 2/5
The Diameter Ratio is a pairwise relationship of a daughter segment to its parent.